Craft is a content management system (CMS). There is an authenticated admin RCE in Craft CMS 5.8.21 via Server-Side Template Injection using the create() Twig function combined with a Symfony Process gadget chain. The create() Twig function exposes Craft::createObject(), which allows instantiation of arbitrary PHP classes with constructor arguments.
Combined with the bundled symfony/process dependency, this enables RCE. This bypasses the fix implemented for CVE-2025-57811 (patched in 5.8.7). This vulnerability is fixed in 5.9.0-beta.1 and 4.17.0-beta.1.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
Present
Additional conditions required
Privileges Required
High
Admin privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service
CVSS Vector v4.0
Weakness Type (CWE)
Vulnerable Products 8
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
Craftcms Craft_Cms
cpe:2.3:a:craftcms:craft_cms:*:*:*:*:*:*:*:*
|
> 4.0.0
|
4.17.0
|
|
Craftcms Craft_Cms
cpe:2.3:a:craftcms:craft_cms:*:*:*:*:*:*:*:*
|
> 5.0.0
|
5.9.0
|
|
Craftcms Craft_Cms
cpe:2.3:a:craftcms:craft_cms:4.0.0:-:*:*:*:*:*:*
|
— | — |
|
Craftcms Craft_Cms
cpe:2.3:a:craftcms:craft_cms:4.0.0:rc1:*:*:*:*:*:*
|
— | — |
|
Craftcms Craft_Cms
cpe:2.3:a:craftcms:craft_cms:4.0.0:rc2:*:*:*:*:*:*
|
— | — |
|
Craftcms Craft_Cms
cpe:2.3:a:craftcms:craft_cms:4.0.0:rc3:*:*:*:*:*:*
|
— | — |
|
Craftcms Craft_Cms
cpe:2.3:a:craftcms:craft_cms:5.0.0:-:*:*:*:*:*:*
|
— | — |
|
Craftcms Craft_Cms
cpe:2.3:a:craftcms:craft_cms:5.0.0:rc1:*:*:*:*:*:*
|
— | — |